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#
Code
[A.4.4.4]
[2‑03]
Temperature target:
▪ With
default: 70°C.
▪ Without booster heater: 60°C (fixed).
[A.4.4.5]
[2‑04]
Duration:
▪ With booster heater: 5~60 minutes,
default: 10 minutes.
▪ Without
minutes, default: 40 minutes.
T
DHW
[2-03]
T
H
T
U
00.00
01.00
22.00
T
Domestic hot water temperature
DHW
T
User set point temperature
U
T
High set point temperature [2-03]
H
t
Time
WARNING
Be aware that the domestic hot water temperature at the
hot water tap will be equal to the value selected in field
setting [2-03] after a disinfection operation.
When the high domestic hot water temperature can be a
potential risk for human injuries, a mixing valve (field
supply) shall be installed at the hot water outlet connection
of the domestic hot water tank. This mixing valve shall
secure that the hot water temperature at the hot water tap
never rise above a set maximum value. This maximum
allowable hot water temperature shall be selected
according to the applicable legislation.
CAUTION
Be sure that the disinfection function start time [A.4.4.3]
with defined duration [A.4.4.5] is NOT interrupted by
possible domestic hot water demand.
CAUTION
The booster heater permission schedule is used to restrict
or allow booster heater operation based on a weekly
program.
Advice:
In
disinfection function, at least allow the booster heater (by
the weekly program) for minimum 4 hours starting from the
scheduled start-up of disinfection. If the booster heater is
restricted during disinfection, this function will NOT be
successful and the applicable warning AH will be
generated.
ERLQ004~008CA + EHVH/X04+08S18+26CB
Daikin Altherma – Low temperature split
4P384973-1D – 2018.07
Description
booster
heater:
55°C~80°C,
booster
heater:
40~60
[2-04]
23.00
24.00
t
[2-02]
order
to
avoid
unsuccessful
INFORMATION
In case of error code AH and no interruption of the
disinfection function occurred due to domestic hot water
tapping, following actions are recommended:
▪ When the Domestic hot water > Type > Reheat or
Reheat + sched. is selected, it is recommended to
program the start-up of the disinfection function at least
4 hours later than the last expected large hot water
tapping. This start-up can be set by installer settings
(disinfection function).
▪ When the Domestic hot water > Type > Scheduled only
is selected, it is recommended to program a Storage
eco 3 hours before the scheduled start-up of the
disinfection function to preheat the tank.
INFORMATION
Disinfection function is restarted in case the domestic hot
water temperature drops 5°C below the disinfection target
temperature within the duration time.
INFORMATION
An AH error occurs if you do the following during
disinfection:
▪ Set the user permission level to Installer.
▪ Go to the DHW tank temperature home page (Tank).
▪ Press
to interrupt the disinfection.
8.3.3
Heat source settings
Backup heater
For systems without domestic hot water tank or with separate
domestic hot water tank (only for EHBH/X)
Backup heater operation mode: defines when backup heater
operation is enabled or disabled. This setting is only overruled when
backup heating is required during defrost operation or malfunctioning
of the outdoor unit (when [A.6.C] is enabled).
For systems with an integrated domestic hot water tank (only
for EHVH/X)
Backup heater operation mode: defines when backup heater
operation is disabled or only allowed during domestic hot water
operation. This setting is only overruled when backup heating is
required during defrost operation or malfunctioning of the outdoor
unit (when [A.6.C] is enabled).
#
Code
[A.5.1.1]
[4‑00]
Backup heater operation:
▪ 0: Disabled
▪ 1 (default): Enabled
[A.5.1.3]
[4‑07]
Defines whether backup heater second
step is:
▪ 1: Allowed
▪ 0: NOT allowed
In this way it is possible to limit the
backup heater capacity.
N/A
[5-00]
Is backup heater operation allowed
above equilibrium temperature during
space heating operation?
▪ 1: NOT allowed
▪ 0: Allowed
8 Configuration
Description
Installer reference guide
65
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